To save money, I have tried a few more favorable class 10 cards, only to find one way or another limited feature at all. Either the processing was poor and the service life very predictable, or the speed of 10 MB / s - 22MB / s data transfer was not constant or not given.
The Panasonic card does without snags or dropouts in my Nikon D5000 exact that for which it was built, is recognized without hesitation from my laptop and is highly processed.